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what gears do i have

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Old Mar 3, 2004 | 09:14 PM
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LEIGUY's Avatar
LEIGUY
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what gears do i have

hey guys......i own a 90 bronc 351w with E4OD tranny......what gears do i have in front and back and what size are they...like dana sizes is what i mean....i know much about cars but when it comes to that i have no idea.....also i was wondering the price on something like 4 56 gears and when they do gears are whats in the diff replaced....like lockers ad stuff...or arre the gears just chanced...thanks
 
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Old Mar 3, 2004 | 09:16 PM
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also do yall know a place to get it done, rather than being overcharged at 4wheel parts, or is it something i can do at home
 
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Old Mar 3, 2004 | 09:34 PM
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A good chance you have 3:55 gears, but too be sure you can read the tag on either the front or back diffs.
If you have 3:55s, then to go too 4:10 or 4:56 you will need a new carrier.
 
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Old Mar 4, 2004 | 09:01 PM
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well with 456s ive been told that i will have trouble geting my revs high enough to spin my tires well in the mudd, what do you think?
 
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Old Mar 4, 2004 | 09:36 PM
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The higher the numerical number, the more easily your motor will rev. Going to a 2.73 would bog out. Why would you need a new carrier with new gears? I KNOW the 8.8 is a straight swap and I would assume the Dana is as well.
 
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Old Mar 4, 2004 | 10:14 PM
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The ID tags bolted to either axle will give you the stock ratio, prolly is 3.55:1
I think you need a new carrier when swapping to gears over 3.73:1 in the front Dana44 TTB. And 4.10's would be better for 33" tires IMHO
 
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Old Mar 5, 2004 | 03:34 PM
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I can't seem to find the tag on my Diff. Is it on the side with the axle or other?

Mike
 
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Old Mar 5, 2004 | 06:46 PM
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The tag should be bolted to the inspection plate or cover, opposite of the driveshaft, on your Ford 8.8" rear axle. I have a pic of one at Superford.org "1988 Bronco" (it was deleted from here)

On my Ford 9" rear axle, it's bolted to the the carrier housing, same side as the driveshaft. I have a pic of that here at FTE.
 
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